Engineering and manufacturing industries

The performance of workload control concepts in job shops: improving the release method

Article Abstract:

A study investigated whether or not release methods which control production workload in make-to-order job shops eventually leads to deteriorated lead time and due date performance. The analysis proposed a simple technique for job release that maintains the workload reducing capacities of the existing workload control concepts. The new approach does not subject workloads to fixed norm values but allows for the establishment of a minimal workload in self-regulating fashion.

Periodic production scheduling at a fastener manufacturer

Article Abstract:

The development of a periodic production scheduling system for a metal fastener manufacturing plant is discussed. The initial aim of the project was to reduce finished goods inventory by 33%. However, this goal was complicated by problems such as forecasting, machine availability and the low computer literacy of production personnel. An initial evaluation of the new system showed potential savings of 39% and 25% in setup time and inventory holding cost, respectively.

Concepts for improving scheduling decisions: an application in the chemical industry

Article Abstract:

A framework is presented for evaluating production schedules in a chemical processing environment. The process begins with the determination of the criteria needed for measuring the performance of schedules. Multi-criteria analysis can then be used to evaluate production schedules. A decision-support concept for applying and utilizing evaluation capabilities is discussed followed by a comprehensive schedule improvement concept.